Thursday, June 30, 2011

Geologic Ages: Some Footnotes

The oldest blogger on the web, more or less, except perhaps for Jerry Pournelle, is Brandon Watson on Siris—and here’s a post from Brandon to prove it. In that most informative note Brandon makes use of geologic ages to communicate just exactly how old a blogger he really is—but being a great teacher, he is actually pulling a fast one. Most of us have no idea that we are denizens of the Holocene, the most recent segment of the Quaternary—or, like me, knew once but had forgotten long ago. Brandon secretly hopes that we shall “look it up.” But the effort may be too great for some. Therefore, to help those struggling with Brandon’s post (Cenozoic? Mesozoic?) I present three graphics from ever-helpful Wikipedia here:

The first presents all geologic time. The second shows the last block of the first expanded to show more detail. The third shows the last block of the second, ditto. You will find Brandon in the second graphic, on the right, right on that line that separates the Cretaceuous from the Paleogene. Jerry Pournelle? He is left of the Cretaceous.

Blogging is a great educator if you have a guide like Brandon and able assistants like yours truly—albeit in actual physical age, I am an Upper Tarantian to Brandon’s Holocene.


  1. There are still a fair number who have been blogging longer, although they get fewer as time goes on; and there are fewer still who have been blogging continuously all that time.

    I actually wasted a great deal of time after that post extending the geological time analogy a lot further, to the whole computer age; there will probably be a post on it at some point soon.

  2. Being in Michigan, I considered myself a Devonian fossil, along with the greater part of the limestone deposits.


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